Liquid dispensing apparatus



Get 6, 1942.

W. M. CARROLL LIQUID DISPENSING APPARATUS I 1 Original Filed Jan. 31, 1936 12 Sheets-Sheet 1 2- w. M. CARROLL LIQUID DISPENSING APPARATUS Original Filed Jan. 31, 1936 12 Sheets-Sheet 2 W. M. CARROLL LIQUID DISPENSING APPARATUS Oct. 6, 1942.

Original Filed Jan. 31, 1936 12 Sheets-Sheet 3 GRILTOTRLJZER EY TUTHl-ILER Oct. 6, 1942. w. M. CARROLL 22,193

LIQUID DISPENSING APPARATUS Original Filed Jan. 31, 1936 12 Sheets-Sheet 4 Oct. 6, 1942.

W. M. CARROLL LIQUID DISPENSING APPARATUS Original Filed Jan. 31, 1956 JOB ge I w 3 2 2 T E E l I Q 468 j Q03 if 7 I K .305

12 Shee ts-Sheet 5 Oct. 6, 1942.

Original Filed Janfsl, 1956 12 Sheets-Sheet 6 NW w M $6 6 mm M w W wmn J @Qb gm I Q r 1 o as a u. a vll |i| r M W I I l I 1 1 l I I 1 a l l 1 l1 In J1 0 o o uh oh QR w r WWMBWM mm I m n $10M w MUM URN. v 5mm o mwwm WEN WNW :QMM .NNM, M III A u o i V a H a R wmm t mm 1 Wm m a mmm H n c a mum whm own mmm mam 8m mum H u M 11W\I II o 0 a 1 w mg 9%. mmm MR v mmh Pam pm Wm h E Oct. 6, 1942. w. M. CARROLL LIQUID DISPENSING APPARATUS Original Fild Jan. 31; 1936 .12 Sheets-Sheet '7 Carroll/- Oct. 6, 1942. w. M. CARROLL LIQUID DISPENSING APPARATUS Original Filed Jan. 31, 1936 12 Sheets-Sheei 8 Oct. 6, 1942. w. M. CARROLL LIQUID DISPENSING APPARATUS '12 Sheets-Sheet 9 Original Filed Jan. 31, 1936 J56 I J38 16.15

Oct. 6,1942. Q w CARROLL Re. 22,193

LIQUID DI SPENS ING APPARATUS Original Filed Jap. 31. 1936 12 Sheets-Sheet 1O FIG. 50:

W. M. CARROLL LIQUID DISPENSING APPARATUS Original Filed Jan. 31, 1936 12 Sheets-Sheet 11 w. M. cARR'oLL Re. 22,193

Oct. 6, 1942.

I LIQUID DISPENSING APPARATUS 1 2 Sheets-Sheet 12 Original Filed Jan. 31, 1936 630 FIG. Z3. 5

llHllll I w77311677151": B6 a/daam/M QU'WOZL Reissued Oct. 6, 1942 Reg 22,193

19 Claims.

This invention relates to a liquid dispensingdevice of a computing type and particularly to gasolinedispensing pumps having an indicating device, preferably a clock dial, wherein means is provided for not only indicating the liquid dispensed in the customary units, such as gallons or fractions of gallons such as quarts, but wherein there is also provided an associated means for indicating the cost of the sale based on gallons sold and integral quarts sold.

' Other objects of this invention are to provide means to indicate the total cost based upon a v vide' a computing pump which may be preconditioned by a desired manual operation after dispensing has been initiated, which will automatically cause the dispensing to stop irrespective of the closing of the nozzle valve when a predeterm'ned definite number of quarts have been dispensed and the total cost of the quarts at a predetermined price per quart thus dispensed will be computed and indicated.

Yet another object of my invention is to provide a, register and computing mechanism which is adapted to compute cost based on quart dispensing regardless of whether the unit price upon which the computation is'made is in cents and tenths of a cent per gallon or in cents and fourths of a cent per gallon. 1

Yet another object of my invention is to provide a register particularly adapted to compute in quart increments the total cost based .on unit price of either tenths or fourths of a cent per gallon.

Yet anotherobject of this invention is to provide a price indicating mechanism wherein the price per gallon may be changed by a single manual adjustment which will automatically compel the computing mechanism to compute the value of the gasoline dispensed in the adjusted price change.

Yet another object of my invention resides in providing a mechanism wherein the computing ing made.

Yet another object of my invention resides in providing a resetting mechanism for the clock or computing mechanism wherein the function of placing the dispensing nozzle; on its stationary support and maintaining it thereon conditions a prime mover, preferably the pump motor, for subsequently automatically resetting the computing mechanism upon the initiation of a subsequent dispensing operation and whereby this automatic power operated resettingis accomplished at the initial operation of the pump motor and before the operator has time to start the flow of gasoline through the dispensing line.

Yet another object of my invention resides in providing in a specific construction of resetting as accomplished by a hose reel construction type of pump whereinthe initial outward movement of the hose from the hose reel will cause the automatic operation of the pump motor which primarily will effect resetting prior to the sufiicient withdrawal of the hose and the nozzle from its reel, as would be accomplished in ordinary dispensins.

Yet another object of my invention is to provide a hose reel control which upon the initial extensionof the hose starts the dispensing motor and efiects resetting prior to the time the nozzle assumes its operative position with respect to the tank to be filled and the operator has time to open the nozzle.-

Yet another object of my invention is to provide a register mechanism, the various orders of which are based upon different increments of movement.

These and other objects of my invention will be apparent from a perusal of the following specification when taken in connection with the following drawings.

I Referring now to the drawings in detail:

Fig. 1 shows a front elevatlonal view of a pump, preferably a gasoline pump, provided with one form of my improved price-calculator, the lower portion of the housing being shown broken away in detail.

Fig. 2 is a side elevational view of a pump control mechanismlin connection with the meter valve and the reset mechanism.

Fig. 4 is a view of the computing clock and calculator assembly, the same being ,a side elevation.

Fig. 5 is an opposite side elevation of the clock and calculator assembly.

Fig. 12 is a view showing the gearing for operation of total sale dials.

Fig. 13 is a sectional detail view of one ofthe total sale dials being takenon line l3l2 of Fig.14.

Fig. 14 is a sectional view of the total sales -dia l taken on line l4-l 4 of Fig. 13.

Fig. 15 is a sectional view taken on line |5ll of Fig. 6 showing a portion of the reset mechanism.

Fig. 16 is a changed position of the parts as shown in Fig. 15. i

Fig. 1'! is a sectional view taken on line II I'I of Fig. 6 showing a portion of the resetting mechanism. T a

tions 22 of the hose reel 8, all as illustrated-and claimed in my prior applicatior Serial No. 22,287. aforesaid. From the central connecting pipe 22 the liquid will flow through the flexible hose 24 coiled on the reel, and thence out through a dis? charge nozzle 26 provided with a control valve 28 having a manually operable valve control lever ll. Inasmuch as the details of the hose reel and standing of the present invention.

Fig. 18 is a changed position oi! the parts shown in Fig. 17.

Fig. 19', 20, 21, 22, 23, 24, 25 and 26 are iating mechanism.

Fig. 27 is a sectional view taken on line 21-2| of Fig. 24.

Figs. 28, 29, 30, 31 and 32 are views showin the modifying price calculating mechanism.

In my improved form of computing pump I have preferred to show the computing pump in conjunction with a drumpr reel type of dispenser disclosed in my pending application, Serial No. 22,287, filed May 20, 1935. It is, however, dis-- tinctlyunderstood that this is merely illustrative and that my computing pump may be utilized with any conventional type of dispenser of the present day use, and particularly with the present type of dispenser wherein the liquid is pumped through a new line which includes a meter, and wherein the meter terminatesin a flexible hose provided with a valve control nozzle, and wherein the nozzle assembly when not in use is supported on'a hook or other support on the outside 01 thehousing, which hook has an associated mechanism for controlling the motor pump and also for lockingthe motor pump and the .embodiment, as in my prior application above mentioned,; thelower portion of the housing is detail figures showing the operation of the price calcu v In the present instance, the belt II from the motor Ill to the pump pulley on'the pump shaft I2 also operates to drive a smaller pulley 32 car rying the gear 34, which in turn mesheswith another gear 38 on a flexible shaft 38, so that when the pump is'operated this flexible shaft 38 will be rotated. l r

l A switch box 40 is provided in conjunction with the motor In and a shiftable switch mechanism 42 includes a rod 44 operably connected by means of a lever 46' to the valve control shaft 41 and an additional lever 48 is operably connected to latching mechanism so, which inturn isoperated by the hose reel 6 in the general manner set forth in my prior application Serial No. 22,287,

aforesaid. i

The upper portion of the housing,'and preferably above the meter ll, provides room for my improved price computing mechanism including oppositely disposed clock faces 52 and 53. Each 4 of these clock faces are provided with a series 0" numbers ranging from 0 to 19 and disposed substantially concentrically about a pair of hands. including a small gallon-indicating hand 54 and a larger indicating hand 56. The smallhand will move one-twentieth Q5 ofaflcomplete revolution in indicating a gallon, and the large hand will make a completerevolution onthe'indica tion of'a single gallon: Thereforajth e large hand in a movement 1mm 10' to.:1 will indicate'ts. of" a gallon; In addition, each dial I2-ancl i2 is provided with three openings disposedj preferablv just over the zero figure onthe-idial' and three '7 additional openings Just abovflthe' figure'lo'on the dial. The upper series ofthree openings is arranged to indicate the cost. of lsale and the lower openings are arranged toin dicate the price pergallon.

Furthermore, by reierence to 2, the upper,

side of the housing is provided with an opening 58 which is provided with a slidable closure Ill.

which may be manually opened to display a gallon totalizer 62 and a money or price totalizer 64.

This door also. gives access to the price-settingv control knob 86, and also a knob SI for locking the pricesetting mechanism.1so that. the latter cannot be'changed during-computing and dis-' pensing. In addition, the. "encloses, a

rack 'lll', preferably operated tronf the-door 12,

designed to enclose. ahose reel, a pump 8. a

' the liquid flow line 4 is providcdwith a control valve ll operable as hereinafter-set forth. This valve governsuthe now of'the liquidfrom the new line 4 into the meter ll, which is preferably oi', the liquid'displacement type and islof any desired construction. I prefer, however, to the present" ,type of. Bowser meter now on the market:

- The meter discharge is-provided in the form of a pipe 2' which connects ,tothe central-por- 75,

which controls thepla'cingof the: nozzle ra on its stationary support, as preferably shown in 11.19,.

prior application Serial No. 22387 Thefrack fllii is adapted'to actuate agear "mired to a reset shaft II, as be hereinafter. set forthgj 'l'he resetting mechanismoi' mypresent invention in" some particulars differs fromgthat'shown in my prior application Serial No. 22281 31 such im provementswillbe claimed inthi's-xpres ent app cation .J a The meter ll is providedjwitn ss-extension;

-' meter shaft ll provided withfadetachable tension". drivingazbe'vel gearfll2'meshing with another bevel gear 84 on a shaft 86. (See Fig.' 9.). The flexible shaft 88,.shown in Fig. 4, terminates in a bearing 88, where it is then connected to a shaft 80 having a spiral gear 82 adapted to actuate another spiral gear 84 fixed on a sleeve 86 and rotatable on the shaft I02, see Fig. 9. I

The invention of this computing mechanism embodies certain principles disclosed in my prior application, Serial No. 9,760, filed March 'I, 1935, but differs therefrom in generic and specific objects of invention and constructional features and operation whereby greatly improved computing functions are secured.

Referring now to Fig. 9, it will be understood that the pump driven shaft 80 is driven at all times that the pump is in operation. It is also I understood that the meter extension shaft 80 is driven only when the meter is in operation, in short, when dispensing is taking place. Sleeve 86 is connected to a cup-shaped clutch housing 88. Within this clutch housing is disposed a clutch memb'er I00, which is keyed to a shaft I02 as by a key I04. As shown clearly in Fig. 10, the clutch member I00 is provided with three radially extending equi-distantly spaced arms I06, forming therebetween three angularly shaped pockets I08, H0 and H2. One wall of each of these pockets comprises a face II4, the

other wall of each pocket comprises the face I I6, 0 which is disposed at slightly more than a right angle to the'face H4. The face I I6 is considerably longer than face II4. In the face II4 of each pocket isprovided a recess H8 in which is located a coil spring I which normally presses against rollers I22 disposed within each pocket. The springs .I20 constantly force the rollers into contact with the circular inner wall of the clutch housing 88 and against the oppositely inclining wall face II6 of the pocket. These rollers are each carried on roller shafts I24, mounted upon the face of a gear I26, which is connected to one end of a sleeve I28 carrying on its opposite end a small gear I30 meshing with a larger gear I32,

loosely mounted on the cross shaft 86. Mounted on the shaft I02 are three radially disposed arms I84, I38 and I38, the same being rigidly fastened thereto by pins or other devices. Each of these arms carries a roller I40 thereupon. These arms are spaced apart angularly on the shaft I02, 120

. degrees apart. In addition, the shaft I02 carries a gear I42 fixed thereto, meshing with another gear l44, to drive the gallon-totalizer shaft I46, hereinafter referredpto. This shaft I46 operates a in the well-known manner, the-gallon-totalizer 62. In addition, the shaft I02 is provided with two cams I48 and I60, each being adapted to actuate pins I62, I64 (see Fig.5) as'hereinaftermore fully. set forth. The' shaft I02 which revolves once foreach quart or other unit dispensed, in addition is provided with a notched disc I66, having a notch I58 into which cooperates with an index finger I60. As'shown in Fig.

3, this index finger comprises an angle lever pivoted at I62on a stationary support I64, and is operated by means of a rod I66, having an adlustable connection I68 with a lever I10, which lever is mounted on the valve control 41 upon which the lever 48 is also rigidly mounted, the

lever at 48 being shown in Fig. 1 and also in Fig.

3. This lever 46 is operated to cause the opening I of the control valve I8 and is actuated by means of the hose reel on a starting movement, and is. also actuated by the spring II of the control valve when the sylphon II4 operates the unlatching mechanism I16 to permit the spring II to urgethelvalve I8 .to closed position, all as set forth in my prior application Serial No. 22,287.

Itwill thus be seen that in the present instance when the sylphon is snapped from the nozzle valve lever, as in my prior application Serial No. 22,287, the valve I6 can only close when the index finger I60 registers with the notch I58 in the quart or other unit notched disc I56. Thus the valve will only completely close when a quart, which in the present instance is the minimum unit to be computed, has been dispensed. It will be understood the snap of the sylphon will condition the finger I60 so that it presses against quart unit. During this same time the completeunits have been computed and indicated on the computing mechanism of the clock.

Referring now again to Fig. 9, the gear I82 is frictionally driven by the meter shaft 80 through spiral gears 82 and 84 and a friction disc I I6, which is pressed by means of spring "8 against the side face of the gear I32, the other face of the gear I32 presses against the stationary portion of frame I80. Gear I32 will drive gear I80 to drive sleeve I28 which in turn will drive gear I26 which in turn will drive the rollers I22 ina' Simultaneously therewithplanetary movement. the pump shaft will drive the cup-shaped housing 88. A differential of movement between the member I26 which carries the rollers 'I 22 and the cup-shaped housing 88 will serve to carry the rollers into wedging engagement between the faces H6 and the inner circular surface of the cup-shaped housing 88', whereby to cause movement of the member I 00, which member being keyed by means of key I 04 to the shaft I02, drives the shaft I02 at this differential speed whereby to revolve the computeractuating arms I34, I36 and I38.

In addition, the shaft 80 is provided with a gear I82 which drives gear I84 loosely mounted on shaft I86 but which drives said shaft by means of a well known friction clutch mechanism. Shaft I86, at its outer ends is provided with the fast indicating clock hand 56.- In addition, the

fast thereto, which drives a full tooth gear I80,

which. in turn carries a sleeve I82 having at its opposite end another gear I84. This gear I84 meshes with gear I86 mounted on a sleeve I88 which has fixed to it at its opposite end a slowing moving hand 84. It will be understood that this drive, shown in Fig. 9, is duplicated at the opposite side of the clock mechanism.

Referring now to the computing mechanism shown in Fig. 7 which is an expanded perspective view of the associated parts and also to Figs. 19 to 27, inclusive, it will be understood that this computing mechanism comprises three sets of counter assemblies, each similar to one another but not identical with each other. These three counter assemblies 200, 202 and 204, see Fig. 7, are arranged on' the shaft 222 and co-operate with each other to compute .the price of the amount of liquid flowing through" the meter and also having necessary mechanism for setting the price per gallon, and mechanism for returning them to an initial position after the dispensing operation, which will be referred to later.

Referring now to the construction and operation of the counter assembly and transfer mecha nism it will be understood that each set of counter wheels 200, 202 and 204 are driven by their respective arms I34, I36 and I36,mounted on shaft I02. Each of these arms I34, I36 and I36 are adapted to co-operate with an actuator arm 220,- 220' and 220" to operate counters 260, 202 and 204, respectively. The arms I34, I36 and I38 and their corresponding rollers revolve in the path of the actuator arms 226, 220 and 220". The

rollers I40 of the arms engage the radially extending faces 2l6 of the actuator arms (see Figs. 19 and 24) pivotally mounted on the shaft 222 and drive them through a certain are or number of degrees. The actuator arm in the 260 counter wheel assembly is driven '12 degrees while the actuator arms in the 202 and 204 counter wheel assemblies are driven 90 degrees, as shown in Figs. and 24, respectively.

Each actuator arm 220 is provided with a pivotal pin 224 on which is pivotally mounted a pawl 226 under tension of a spring 228, so as to normally pull the pawl toward a ratchet gear 230, rotatably mounted on shaft 222. Pawl 226 is held out of engagement with the ratchet teeth 230 by means of a locking pawl 232, pivotally mounted on a pin 234 on the actuator 220. The

locking pawl 232 is provided with a shoulder 236,

adapted to engage a notch 238 on the hub of the pawl 226 so that when so engaged, as shown in Fig. 20, the pawl 226 will be held in inoperative position but when released the pawl 226, under tension of the spring 228, will'engage the ratchet teeth 230. In addition, the locking pawl 232 is provided with an ear 240 adapted to be actuated by means of lobes 242 on lobe discs 246, 246' and 246". These lobes 242 are spaced equi-distantly around the periphery of the discs 246, 246' and 246". There are five of these lobes spaced 72 degrees apart on the disc 246 and four of these lobes spaced 90 degrees apart on the discs 246' and 246, Due to the fact that the rollers i40 on arm I34 (see Fig. 24) engage the actuator arm 220 only '12 degrees of its 360 degrees of travel, five lobes are necessary on the lobe disc 246 spaced '12 degrees apart. The rollers on the other two arms, I36 and I38, (see Fig. 19) engage the actuator arms 220 only 90 degrees of their 360 degrees of travel, four lobes areonly necessary on the lobe discs 246' and 246".

These lobes 242 are set in position to. correspond to the price per gallon. This is accomplished-by means of a price-setting knob 66 which upon turning rotates shaft 250, see Fig. '7, which in turn turns the sprocket 252 to move the chain 266, which in turn engages the sprocket 258, mounted on the shaft 260.

This shaft has pinned to it a'gcar 262 (see Fig. 7) engaging a large gear 264, and this large gear is fastened to a five tooth Geneva gear 266 (see Fig. 27) which is fastened to a sleeve 266 by means of a pin 210. This sleeve 268 is provided with a tongue and groove detachable clutch connection 212 and the flange of this sleeve 214, which carries a pin 216, whereby it is originally mounted to. alobe-carrying disc 246. The gear 266 is adapted to mesh with a small completely toqthed gear 280 mounted on a sleeve 282 (see Fig. 7). 0n the other end'of the sleeve is mounted another small gear 284 meshing with a larger gear 286, which forms a part of another group of gears of the same construction, as shown in tates the'small gear 284 on a sleeve 206 similar in all respects to sleeve 282 and having a like function. This sleeve 296 in turn is connected to gear 266 which in turn drives a large gear 300. Just as gear 264 is connected to its lobe disc 246 and just as gear 286 is connected to its lobe disc 246', so also gear 300 is connected to its lobe disc 246" and thus through the turning of knob 66.

and the hereinbefore described chain of interconnections, when knob 66 is turned the various lobe discs 246, 246' and 2465 are adjustably rotated and this ad ustable rotation serves to position each lobe disc with respect to the lug 240 on each locking, pawl 232, whereby to determine the position and at what time the pawl 226 will be released from the position shown in Fig. 20 to the position shown in Fig. 22 so that the pawl in its counter-clockwise movement will actuate the ratchet wheel 230.

On the same shaft 260 that is turned by the price-setting knob 66 there is a sprocket 302 over which runs a chain 334 which runs over two larger sprockets 366 and 308, and over a tightening sprocket 326. The sprocket 306 is fast to a sleeve 361 mounted on a shaft 3I0, which sleeve has fixed to it a dial 3I4 having on its peripheral face figures 1 to 9, indicating tenths of a cent.

Next to the dial 3I4 is another dial 3I6 also caron one side of the machine and dials on shaft 3I2- are viewable through window 326 on the other side of the machine. Through Geneva mecha nism comprising the Geneva gear 332 driving the full gear 334, the second dial 3I6 is driven, and this in turn through another Geneva gear 336 driving the full gear 338 in turn drives the cent 1 dial 3I8, whereby the price per gallon is set by turning control knob 66. The elements 322' and 336 are Geneva pinions which are driven by dials 3 and 3I6 respectively to operate the'Geneva gears 332 and 336.

The means for indicating the cost of sale is shown clearly in Figs. 1 and 5. By reference to these figures it will be seen that the upper portion of the dial of the clock face is supplied with three windows immediately below zero on the clock face. These windows 320 are duplicated at 346 on the opposite sides of the clock face.

Referring now to the computing mechanism, it will be noted that the ratchet 230 (see Fig. 27) is fastened to the 4 0 tooth gear 348 (see Figs. 24 and 2'?) by means of a pin 360, also fast to this gear is a five short tooth Geneva gear 352. This Geneva gear 362 engages'a smaller short tooth gear 364 (see' Fig. 26) on the shaft 356 and the gear 364 in turn engages another gear 358 on the shaft 360, which gear engages gear 362.

Referring to Fig. 8, gear 362 has pivotally 'meshing with a gear 316 in the second bank 202. The gear 316 is connected with a four shorttooth gaging a ratchet wheel 4I2.

Geneva gear 818 in the same manner as gear 848 spring pressed pawl like thatas shown in Fig. 8

and an internal ratchet to drive the enlarged hub 880 on sleeve 882. The opposite end of sleeve 882 carries rigidly a gear 884 meshing withjgear 388 in a third bank 204, which gear I88 corresponds in construction to gear 818 and gear 848.

Gear 888, therefore, acquires the total accumulation of the first two banks and also accumulates the amount registered on the third bank, due to the movement of ratchet 280", which operates in the same manner as ratchet 288 of the first bank and ratchet 280', of the second bank. The total accumulation of the three banks is carried forward on gear 890 which is secured to the accumulation gear 886. By reference to Fig. 12 it will be seen that gear 390 connects with two parallelly arranged train of gears for driving two sets of price indicators disposed on opposite clock faces. For instance, the gear 390 drives a smaller gear 392' fixed on shaft 894, the opposite end of which carries gear 398 driving a larger gear 398 on a shaft 400 which in turn drives a small gear 402 on a sleeve 404 mounted on the dial shaft 406.

By reference to Figs. 13 and 14, rotation of the sleeve 404 has connected at its opposite end a gear 488 carrying a spring pressed pawl en- The ratchet H2 is fixed to the side wall 4 of a dial asse mbly 4I-i. This ratchet H2 and side wall 4| 4 are fixed to a sleeve 8, loosely mounted on the shaft 408, which sleeve in turn has attached thereto and adapted to rotate therewith a one cent dial 4| 8, having on its peripheral face figures indicating 1 cent to 9 cents. From the side wall 4I8 of the dial 8 there are two teeth 428 which teeth engage a Geneva gear 422 loosely mounted on shaft 424. Attached to this Geneva gear and rotating with it is a full tooth gear 428 which engages a larger gear 428 of the 10 cent dial assembly. This dial assembly 480 is driven in the same manner as the preceding dial assembly and has figures on its peripheral face to indicate 10 cents to 90- cents, and in like manner the third dial assembly 432 is driven by a Geneva mechanism 434 controlled by the struck-out teethv 488 on the side of the dial 430. This last dial has figures on its peripheral face which indicate $1.00 to $9.00.

The dial 482 is shown as carrying on its side punched out tooth 442which is not used in the present instant but the construction is shown since it facilitates the manufacture of interchangeable dials, because each dial assembly is a self-contained unit.

In a smilar manner, the gear 390 drives a gear 448 meshing with a smaller gear 444 on a sleeve 446 which is similar to sleeve 404 herein described, and which in turn drives the opposite bank of price ind cating dials 448, 450 and 452.

In addition, the gear 390 drives a smaller gear 454 on a shaft 458 which has fastened thereto a spiral gear 458 driving another gear 480 which in turn operates a price totalizer- 64, shown in Fig. 4, as projected through a window.

By reference to Figs. 5, 6 and 9, it will 'be noted two cams I48 and IE0 are carried on shaft I02 engagingpins I62 and I54, respectively. The pin IE2 is mounted on an am 482 and pin I84 is is connected to gear 882 hereinbefore described in v mounted on an am 484. Each one of these arms is provided at'its inner end with a bifurcation providing registering and opposed slots and each arm Just at the rear of its slot carries a laterally extending pin, which pin is adapted to extend in the oppositely arranged slot of the other arm. The two cams I48 and III lie between the two oppositely extending pins I82 and I84. The pins being guided in the respective slots of the opposite arms in this way when the cams rotate, the cams will press the pins outwardly, the pins sliding laterally and horizontally in the slots. In-

asmuch as each pin is connected to an arm, the rotation of the cams will simultaneously move the oppositely extending arms "back and forth. The outer end of each arm carries a pin .444 and 4", respectively. Pin 488 is fastened on a. crank arm 410 pivotally mountedon dial shaft 484. On

the end of the crank arm 418 is a shutter'412 which is adapted in its arcuate reciprocation to cover and uncover the window 844. There are three of these shutters on the crank 410 to correspond to the three windows 844, In a similar manner the other shutter on the opposite side of the dial covers and uncovers the window 848. Thus in the operation of this device every time there is a shift in the indicating dial the shutter is automatically operated to cover the window so that the change is not viewable. The arms 482 and 464 have connected to them at the pins 488 and 468, springs 414 and 418 connected to the main frame I88 by a pin 41! which are for reoperation, it will be seen that my improved computer clock is operated by the power of the motor In transmitted through a reducing gear and the flexible drive shaft 88, the selected speed of which is approximately 60 R. P. M.

' When the pawl assembly shown in Figs. 19 to 23 is rotated in onedirection pawl 228 is brought into co-operation with ratchet 230. It will be seen by projecting one of the other lobes of the disc at various points in the path to travel of the pawl assembly the lobe will trip the pawl 2 28 into engagement with the ratchet 280, causing the latter to be advanced an adjustably variable num- :ber of predetermined spaces. The pawl is restored to disengaged position by a stop plate 288 which is held rigidly bybeing mounted on shaft I02. The pawls have flat surfaces 2 which are engaged by co-operating stop plates 239 when the arms are returned to position by the spring 248. The springs are strong enough to cause surfaces 2 and plates 288 to, withdraw the pawls from engagement with the ratchets against the action of springs 228 and place the pawlsunder control of the latches 232.

As the actuator 220 moves counter-clockwise it has at its opposite end a locking catch in the form of a shoulder 418 adapted to engage a shoul der 480 on a pivoted lever 482 whereby as the actuator revolves in a counter-clockwise directionit will be held in the position shown in Fig. 21 by the shoulder 480 engaging the catch 418 on the actuator 220. It is held in this. position until the arm I84 which is rotating in a clockwise direction strikes a lug 484on the lever 482 to disengage the catch on the actuator 220, whereupon the actuator by means of its spring 248 is returned to its initial position, as shown in Fig. 19.

The speed of shafts 88 and is selected electively and not by way of limitation. The meter shaft 80 operates one revolution per gallon. As

' into engagement with .with-the ratchets "I, 230' and 20000000 00.0001010 11011 radially 242. oi'the :40".

That-11s.; 01100011 carry one long as there is no flow of liquid through the meterthe rollers "I12 will remain stationary'even though the motor is in operation and is driving the cylindrical housing 98. When liquid flows through the meter rotation movement will be imparted to the rollers to brin the clutch rolls the cam shaped pockets, whereby to rotate the shaft I02. The ratio. between the gears I30 and I32 is such that the clutch disc 88 will be rotated at 4 revolutions per gallon or the equivalent of one revolution per quart. Rotation 01 this clutch disc will cause the. shaft I02 to-be rotated by clutch member I00 in a .4 to l clutch ratio with'the meter. The shaft I02- having the 3 radially disposed arms I, I80 and ISO thereon rotates in such a way as to cause these arms to be alternately and continuously driven through a definite arc of travel once for each quart of liquid passing through the meter. The actuator arms of each set or bank are ioosely'mounted on the shaft 222 and after being a I30 and I30 are returned to position by their springs 24!. As hereinbefore described, movement 0! each actuator moves itscorresponding pawl 226, which pawls are adapted to co-operate 230" and fastened to the actuator 220 is another'pawl 232 disboth the 4th and 5th place decimals'and this counter gear has 8 spaces instead of 10 and the gear is advanced 2 spaces for .00025, 4 spaces for .0005 and 6 spaces for .00075." In some localities gasoline is sold in A and cent prices pergallon. By reducing these gallon prices to price per quart it will be noted that the result comes out in 6 decimal places and the combined 4th, 5th and 6th place is in Arth fractional sub-multiple division of the 3rd digit place. For example, the quart value of 12% cents per gallon is .03625, the last 34iecimals being ths of the 3rd place decimal whole number. Thus to accumulate this value on the /4 the first or .8 spaced counter wheel would be advanced 5 spaces, nothing would be recorded on the 10 cent counter wheel but the cent counter wheel which is a 10 division wheel, will be advanced 3 spaces. The first place decimal oi the .quarts value is always 0 so only 3 counter wheels are necessary to accumulate these values by additional said value for each quart ctuated by the arms I34,

dispensed. Of the three accumulating counter wheels or gears used, the first (8 division) takes care of everything below the 3rd decimal place.

The second wheel (10 division) takes care of the third decimal place and the 3rd counter wheel (10 division) takes careof the 2nd decimal place which full cents.

on. Qt. as. or. 001. Qt. GaL- Q0. 00:. Qt. 00!. qt. on. Qt. c101. Qt.

100 .000 100 .040 200 .000 240 .000 200 .010 020 .000 300 1 .0a020 -1 .04000 1 .00000 p 1 .00020 1 .01020 1 .0002 1 0 .0000 .0 .0400. 0 .0000 2 .0000 2 .0100 2 .0000 2 0 .00010 a .04010 a .00010 0 .00010 a .01010 0 ,.00010 3 4 .001 4 .041 4 .001 4 .001- 4 .011 4 .001 4 0 .00100 0 .04100 0 .00100 0 .00120 0 .01110 0 .00100 0 O .0316 6 -04 6 .0515 0 .0010 6 .0715 6 .0816 6 '1 .00110 1 .04110 1 .00110 1 .00110 1 .01110 1 1 .00110 1 0 .000 a .040 a .000 s .002 a 012 s .002 a 0 .00000 v0 .0420 0 .00000 0 .mm 0 01120 0 .00200 0 1041 ..01a0 110 010 200 .0000 000 0:40 010 1 .00010 1 104010 1 .00010 1 1 .00010 -1 .01010 1 .00210 1 0 .000 1.040 0. .000 .2 .000 0 .010. 2 .000 0 I 0 a .04000 0 .00100 0 .00000, .0 .01000 0 0 4 .0000 a 4 .0400 *4 .0000 4 .0000. --4 .0100 4 .0000 4 0 .00010 0:. .0401 0 .00010 0 .00010 0 .01010 0 7.00010 0 0 .004 40 1 -044 0 .004 0 .004 0 .014 0 .004 0 1 1 .04400 1 '.00400 1 ..00400 1 .01420 1 .0000 a 1 0 .0040 0 40440.10 .0040 0, -0040 a .0140 0 .0040 s 0 .00410' 0 1.04410 0- .00410 0 ..00410 0 .01410 0 .00410 0 140 .000 .040 000 .000 000 -.000 ,000 .010 040 .000 000 1 .00000' .1 .0405 1 .00000 1 .00020 1 .01000 1 .00000 1 0' .0000. .0 .0400 0. .0000. 0 .0000 0 .0100 2 .0000 2 0 .00010 0 .04010, 0 .00010 a .00010 0 .01010 0 .00010 a 4 .000 4 .040 .4 .000 4 .000 4 .010 4 .000 4 0 .00000 0 .04000 0 .00000 ,0 .00000 0 .01000 0 .00000 0 0 .0000 I 0 .0400 0 .0000 0 .0000 0 .0100 0 .0000 0 1 .00010 1- .04010 1 -00010 1 .o0010 1 .01010 1 .00010 1 a .001 a .041 a .001 0 .001 a .011 a .001. s 0 0- .04100 0 .00100 0 .00100 0 .01120 0 .00100 0 100 .0010 100 0.0410 000 .0010 .0010 010 .0110 000- .0010 000 l .00110' 1 .04110 1 .00110 1 .00110 1 -.01110 1 ..0s110 1 0 .000 0 .040 0 .000 0 .000 2 .010 2 .000 2 0 .00000 -0 @0402 .0 .00000 0 .00000 0- .01000 a a .00020 a 4 .0000 .0400 4 .0000 4 .0000 4 .0100 4 .0000 4 0 .00010 0 .0510 0 a .00010 0 .00010 0 .01010 0 .00010 0 v0 .000 0, .040- 0 .000 y 0 .000 0 .010 0 .000 0 1 -1 .04000 1 .00000 1 .00000 1 .01020 1 .00020 1 0 .0000. 0 .0400 0 .0000 a .0000 0 .0100 a .0000 0 4 0 .00m 0. .04010 0 .00010 0 .00010 0 .01010 0 .00010 0 projectin lobes price-determininsdisc I, 2!!" and.

The accom v chartshows prices pergailon fromto 40 cents by 1'0 0! a cent and the value in quarts. Referring to the rices it will be noted that the 4th and 5th. decimal'places to make up items which. are /4 fractional divisions of the 3rd place digits.

and 5thi places progress by re- I h totheird decimal place. ln order 0 meet 0100-.

or 1 T30... rigi j'haccumulate the value of eon'ditienlhaveprovidedone countradially projecting lobe spaces '12 degrees apart 00, 20, 00 110 '15 and 011011 Referring to the drawings, it will be noted that the ratchet 200 has 40 teeth and is secured to the side 01' gear 340, which also has 40 teeth. The actuator 220 in the first bank is rotated by its co-operating arm I" through an arc of travel of 72 degrees or the equivalent of 8 spaces of ratchet 230 and gear 264, shown in Figs. 24 and 25. .In the second and third banks the actuator arms I20 and are rotatedthrough an area! travel of 90 degrees or the equivalent of 10 spaces of their respective ratchets 230' and 210",

. and gears-310: and 300, respectively. The pricedeterminingdisc 240 in the first bank 200 has 5 and the price-determining discs in the other two discs have 4 radially projecting lobe spaces, 90 degrees apart.- As hereinbefore stated, the shaft 280 is extended to the outside and is connected by means of chain gear to adjustablepricechanging knob 68 by which the shaft is manually rotated in order to change the price. The shaft 280 has secured thereto the gear 232 which meshes with the full tooth gear 264 in the first bank, the ratios between the gears 282 and 264 and between the sprockets 302 and 308 are such that when the right-hand price-indicating wheel 3I4 is rotated by the knob 68 one space, the price-determining lobe disc 248 in the first bank will be so positioned as to cause the pawl 228 to advance the ratchet teeth 230 a distance of two spaces even with the value .0025.

spaces on the right-hand price-indicating wheel Two 3I 4 would cause 4 spaces to be advanced on ratchet 230 or the value .005, 3 spaces on the right-hand price-indicating wheel 3I4 would cause 6 spaces to be advanced on ratchet 230 or the value .0075 the next time the value .0075 would change to .001. The transfer gear 268 which rotates with gear 284 would at that time engage gear 280 on the sleeve 282 having at its other end gear 284 which engages the 40 tooth price gear 285 and price-determining disc 248' in the second-bank to be advanced one space, and so on. The result is that when anv desired price per gallon is indicated on dial 3I4 by turning knob 88 the corresponding price per quar'tis already set up in the register. The locking pawls 488 co-operate with the price gears 284 (see Fig. 19) and insure the accurate positioning of the price-determining lobe disc 248. A

shaft 490 having a collar with a flat side 432 is provided to lock the pawls 488 after any desired price change has been made. Movement of this shaft 490 is preferably under lock and key. However, I prefer to provide a knob or handle 88, Figures 6 and 18, mounted on an arm 488 pivoted on the shaft 490, this knob or handle 88 being accessible through the opening 58 when the door has been opened, as has hereinbefore been described. The knob 88 is fastened to a plunger 498 which has a spring 500 adapted to keep the enlarged head of the plunger 488 in register with a hole in the frame I80. It will be seen, therefore, that rotation of the shaft 490 can only be accomplished by pulling out the plunger from the registering opening in the frame and revolving the arm 498 to a down position, as indicated in dotted line in Fig. 4, which will allow the flat portion of the collar 482 on shaft 490 to become adjacent to the locking lever 488 whereby the gears 284 will be released for rotation; In order to prevent the plunger 498 from being retracted and shiftingof the arm 485 to the unlocked position, I provide an enlarged perforated head on the plunger 498 adapted to receive a seal 502 passed throughthe perforation in the end of the plunger so that it cannot be retracted unless the seal is broken. This looking or sealing means is so desired so that a change of price per gallon cannot be accomplished without breaking the seal.

The counter wheel assembly in each bank comprises a lobe carrying disc 248, 248' and 246", a full gear 348, 318 and 388, and a transfer gear 352 and 318. The transfergear in the first bank transfersevery 8th space, while the other two banks transfer every 10 spaces. The

transfer from the 10th to cent is arranged to occur when of a cent has been accumulated.

see Fig. '3.

turn drives the gear The counter transfer gear 352 co-operates with gear 354, loosely mounted on the. shaft 358, which engages another gear 358 loosely mounted on a shaft 350 which engages another gear 382. Gear 362 drives a gear-.314 through the ratchet and pawl clutch assembly, as shown in Fig. 8. The gear 314 meshes with full gear 3I6 in the second bank and thus the transfer is imparted. This transfer is duplicated by the 2d and 3rd banks. The cost of sale is indicated on the price dials and these dials have a capacity of $9.99 and will start from 0 upon a subsequent dispensing operation to compute the number of gallons delivered and the "price thereof.

In the third bank, Figure 7, the transfer is imparted to gear 385 which is fixed to operate the gear 390. By referring to Figure 12, it will be seen that the gear 380 operates, through the various gear trains there disclosed, the cost indicating dials 4H] and 448 which in turn operate the second and third order indicating dials through above described transfer mechanisms.

When a dispensing operation has been compieted and the computing mechanism has registered on the clock face the amount of liquid dispensed and the total sale price of the complete amount, it is desirable and necessary to condition or reset and return the various mechanisms such as the total sale dials, clock hands and their respective operating members to their zero and initial positions, respectively, before another dispensing operation takes place. This resetting is accomplished automatically by the power of the pump motor driving or operating certain resetting mechanism which has been pre-conditioned by the completion of the previous dispensing operation. I

Referring now to the drawings and in particular to Figs. 3, 4 and 5, it will be understood that at the end of the dispensing operation the control nozzle 28 is returned to its pocket in theside of the housing 2 and in order that the nozzle 28 will remain on itsangularly disposed rest the door or closure must be lowered at least a certain distance in order to prevent the nozzle from sliding from its rest. This required distance is sufficient to cause the rack I0, which is attached to the upper part of the door,- to revolve the gear I4 fixed to the reset shaft I8, Mounted on the reset shaft I5 is a radially extending arm 502 keyed to the shaft by pin 504. This arm 502 carries a pivoted pawl 508 adapted to engage a notched disc 508. This pawl 508, Figure 16, is urged against the periphcry of the disc 508 by a spring 5I0 mounted on the radial arm 502. Upon rotation of the reset shaft 16 in a clockwise direction, see Fig. 15, the pawl 508- will engage one of two notches 5I0 and M2 on the periphery of the disc 508. Disc 508 is fast to a gear 514 by means ofpins III. The gear 5 in turn drives anv idler gear 5 which is mounted on a stub shaft 520 journalled in the clock frame I80. This idler gear 5I8 in I26 which-carries the rollers I22. Rotation of this gear with its clutching connection with the clutch member-l00 throir'h the rollers I22 causes the shaft I02 that-carries the arms I34, I35 and I38 to be rotated totheir starting or initial posit on. Th s initial or starting position of these arms which has to be accurate and coincide with the other starting positions of the cooperating mechanisms, is determined by the adjustment'of a stop pin 508 mounted onthe frame I80, see Figs. 15 and 16.

This stop pin is so located that it will engage the pawl 505 in the path of its arcuate rotation Upon rotation of. the reset shaft 15 the pawl505 engages one of the notches I2 on the disc 505 and carries it to a pos tion shown in Fig. 16, at which time the forward end of the pawl 255 will engage the pin 509 and prevent further rotation". This movement through the gearing described hereinbefore is sufiicient to reposition the arms I34, I35 and I35 in accurate relative aline'rnent with the actuating arms 220, 220' and 220", respectively.

The position of the notches 5I2 on the disc 555 are in is due to the termination of the pre- 552 pivotally mounted on the disc 550. is adapted to engage a notch 554 on a sleeve 555 which has at'its other end a gear 555. This gear in turn meshes with another gear 510 on the clock hand operating shaft I55. This shaft I55 has on its outer end thefast moving hand 55 which will i, be rotatedtowards zero position by the rotation of the shaft I55. Shaft I55 isenabled to turn vious dispensing operation. The disc has two notches 180 degrees apart. The pawl 505 travels only 180 degrees, therefore, it will always engage one of the notches during its rotation. Upon the reverse rotation of the reset shaft 15, due to the opening of the door 12, the pawl 505 will return to its starting operation position, as shown in Fig. 15, and the end portion 5 on the pawl will engage the stop pin H3 and hold it out of engagement with the periphery of the disc 508 until-another resetting operation occurs.

The rotation of the reset shaft, due to v. th closing of the door 12,- also conditions a resetting roller clutch assembly mounted on the shaft 250. This resetting roller clutch assembly is con structed similar to the power roller clutch assembly on the shaft I02 (see Fig. 17) having similar rollers 524 disposed in. angular pockets 525 of a clutch member 542, the clutch being keyed to the sleeve 550. 'A'roller carrying disc 522, which carries the rollers 524, has on its periphery a notch 525 and is adapted to engage an extending arm 530, which is part of a lever 552 mounted and keyed to the shaft 554 (see Fig. 1'1); This lever 532 has a radially extending face 555 which engages a cam 535 mounted and keyed to the reset shaft '15. This c'am 558 up'on rotation of the reset shaft 15, will rotate the lever 532 and disengage the arm 530 from the notch 525 on the roller clutch disc 522. By releasing this arm 530 from the notch 525, the

springs 540 in the roller clutch will tend to rewithout moving the meter shaft 50 by reason of the friction clutch connection between shaft I55 and the gear I54.

Referring again to the shaft 555, it has on its I outer end aspline or notch 515 adapted to operate a pawl 515, pivotally attached to the side of the gear I50. This gear I50 is attached to the sleeve I92, hereinbefore described, having on its opposite end the gear I54, which in turn engages the gear I55 to rotate the slow moving hand 54 on the sleeve I55. It-will be understood upon rotation of the shaft 555 the slow and fast moving hands will be automatically returned to their zero position on the clock face.

When the ,clock hands have reached their zero position on the clock dial, the notch 525 again will be engaged by the arm 550 which will release the driving clutch connections between the rollers 524 and the cup-shaped housing 526, which will continue to' rotate while the pump motor is operated.

Referring now to the resetting of the calculating mechanism, which is also operated by the power of the pump motor, I have provided the gear 550 which is attached to the side of the 'roller carrying disc 522, see Fig. 7, which carries a sleeve 550 having at its opposite end another gear 552.- Meshing with the gear 552 is a larger gear 553 l'cosely mounted on shaft 222, which in turn drives a gear 554 fix'ed to the shaft 312. This tate the clutching member 542 and the roller 'dis'c 522 slightly in a counterclockwise direction so that the extending 'arni530 of the lever 552 under the, tension of a spring 544 tends to engage the notch or the surface of thedisc 535 except-when the cam 535 on the reset shaft 15 and the hose nomle 25 has been returned to its pockets in'the side of the frame or housing 2.

When another dispensing operation is desired, the hose 24,is pulled outto revolve the hose reel and to start the pump motor through the mechanism previously described. The starting of thepump motor I0 revolves the spiral gears 52 and 54. The gear 54 is connected to the sleeve 55 which has on its other end the gear 55; which I in turn meshes with the idler gear 545' on the 545 attachedflto the cup-shaped disc 545 of the These pawls and spring assemblies are loosely shaft has on its surface a series of splines or notches 555, Fig. 5, adapted to engage or co-operate with the spring pressed pawls 555.

I g 1 mounted in cut-out speces'in the'body portion of cannot engage the shoulder 525. This arm 532 a series ofge'ars 555,.552 and 554, which are mounted the shaftv 312. Upon rotation of the shaft 312 by the gear 552'and 554 described, and

the power of the pump motor I00; the notches.

555 will rotate the gears 550, 552 and 594 through their respective pawl connections to revolve the resetting gears 545, 315 and 355, loosely mounted on the sleeves 255, but drivingly connected to their respective ratchets 230, 230 and 250"and Geneva gears. In this manner this mechanism is set to its initial or starting position before another dispensing operation takes place.

At the finish of;a dispensing operation the total price dials 4 I5, 430 and 432, viewable through the window or opening 344 on one side of the shaft 222. This gear 545engages .another gear.

dials 445, 455and 452, viewable throughgthe windows 345 on the other side of the pump'have to be resetorset ahead tothe three zero positions. This resetting is accomplished siroller clutch assembly, the roller clutch .assem-..-

bly being free to revolve due to" the :fact that,

the arm555 has been disengaged from the notch 525 upon completion of the previous dispensing operation. h The rotation of the clutch assembly 525 rotate the gear 555 which is attached to the roller carrying disc 522. This gear 550 rotates another gear 552 fixed to the shaft multaneously with the resetting of thejcalculating mechanism just described. and also derives the power for resetting from the pump motor H5. 1 Referring toFlgs. and 12, the gear wheel 553 onshaft222 has meshing engagement with the smaller. gear 552. This gear 555 engages oppositely disposed trains of gearing to drive and reset the cost of sale dials. It will be seen ,in 

